Systec DB-45 - Motor Control Board for Radial Fan

V/D S ERIES
E LECTRICAL ASSEMBLIES
4-10 Revision: 2.1
4.1.6 Motor control board for radial fan
The circuit board is used to control the motor of the radial fan.
JP4
JP3
1 2 3 4 5 6 7 8 9
Fig. 9: Motor control board for radial fan
Pin 4 Analogue circuit board AS1002 (JP15, circ pump)
Pin 6, 7 Radial fan (M4, optional M5)
Pin 8, 9 Power supply (24 V AC)
The circuit boards for controlling the motor of the radial fan can be
configured for 1 or 2 fans using the JP3/JP4 jumpers:
– 1 radial fan: Both always open
– 2 radial fans: JP3 closed